Bobbin guide



Sept. 21, 1965 J. F. MORGAN 3,207,187

BOBBIN GUIDE Filed March 26, 1964 30 29 INVENTOR. F129; 2. JAMES F. MORGAN ATTORN E Y United States Patent 3,207,187 BOBBIN GUIDE James F. Morgan, 3 Beattie St., Monaghan, Greenville, S.C. Filed Mar. 26, 1964, Ser. No. 354,857 2 Claims. (Cl. 139255) This invention relates to a bobbin guide and more especially, to a guide for preventing ejected bobbins from becoming lodged within the picker stick slot on an automatic bobbin change operation.

During an automatic bobbin change operation, ejected bobbins or quills sometimes enter and become lodged within the picker stick slot within the lay. When a bobbin becomes so lodged within the picker stick slot, it is usually disposed in a vertical position with the tip first within the slot and upon subsequent movement of the loom parts during weaving the picker stick may be broken as well as other parts of the loo-m, such as the shuttle and bobbin guide, often causing the yarn being woven into cloth to be' damaged. There is also a tendency for an ejected bobbin following a bobbin change operation to be damaged due to being thrown to the floor of the mill because of improper engagement of the bobbin by the bobbin guide. This invention prevents bobbins from entering the picker stick slot and serves to assist the bobbin guide to place the ejected bobbins or quills into the quill can provided therefor. Devices, heretofore, provided in an attempt to solve the problem have proved to be ineffective either because the parts did not function properly or because of an impractical excessively complicated arrangement.

Accordingly, it is an object of this invention to provide a bobbin guide which will cover a substantial portion of the picker stick slot during a bobbin change operation to prevent exhaustive quills from becoming lodged therein.

Another object of this invention is to provide a bobbin guide which will serve to assist the conventional bobbin guide in the placement of exhausted quills in the quill can immediately following a bobbin change operation.

A further object of this invention is relation of a bobbin protector which will be carried by the filling knife carrier so that the bobbin protector or guide may be advanced therewith immediately following a bobbin change operation and Withdrawn and withheld from the picker stick slot automatically.

Still another object of the invention is to provide a bobbin guide having a guiding surface capable of covering the picker stick slot and guiding the exhausted quill to the quill can which is subject to vertical, inward and angular adjustment with respect to the picker stick slot.

The construction designed to carry out the invention will be hereinafter described, together with other features thereof.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawing forming a part thereof, wherein an example of the invention is shown and where- FIGURE 1 is a perspective view, with parts broken away, looking from the lay portion of the loom toward the battery and automatic change mechanism including the filling knife mechanism commonly known as the Stafford Thread Cutter illustrating a bobbin guide constructed in accordance with the present invention in use therewith,

FIGURE 2 is an enlarged sectional plan view taken on the line 22 in FIGURE 1,

FIGURE 3 is a side elevation showing the parts in advanced position covering the picker stick slot, and

FIGURE 4 is an end elevation illustrating the positioning of the bracket of the subject device upon the filling knife carrier.

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3,207,187 Patented Sept. 21, 1965 Referring more particularly to the drawing, a bobbin guide is illustrated, for preventing ejected bobbins normally ejected into the quill can from becoming lodged within the picker stick slot within the lay of a loom having a filling knife carrier with automatically operable means advancing same in a linear path to engage the end of yarn from the ejected bobbin on an automatic bobbin change operation. A bracket A is carried by the filling knife carrier including a downwardly extending arm and a substantially horizontal arm B extends therefrom toward the lay. A guide member C is carried by the arm B and has a concave inclined guiding surface extending laterally from the arm across the picker stick slot when the filling knife carrier is in advanced position on an automatic bobbin change operation for guiding the ejected bobbin into the quill can. Means are provided for adjusting the arm for adjusting the position of the guiding surface with respect to the picker stick slot, and means D provide for the vertical and inward adjustment of the guide member with respect to the lay slot. The means E are provided for adjusting the angular position of the guide should the angle of the filling knife carrier with respect to the lay be altered.

The drawing illustrates a loom frame 10 carrying an automatic battery mechanism 11. A shuttle feeler mechanism includes a tip 12 which is carried by an arm 13 having a stop '14 for engaging a bracket 15 to check the proper boxing of the loom on the occurrence of an automatic bobbin change operation. The arm 13 is pivoted as at 16 upon a stub shaft 17. The arm .13 carries a crank arrangement 18 which has a laterally projecting pin 1-9 for attachment to the carrier spring mechanism 20. The carrier spring mechanism is attached through a lost motion coupling 21 to a bracket 22 which advances and retires the filling knife mechanism or Stafford Thread Cutter, manufactured by The Draper Corporation of Hopeda-le, Massachusetts, as will be described further below. The arm 18 through suitable mechanism (not shown) actuates the hammer 23 which inserts a full quill from the battery while dislodging the exhausted quill from the shuttle during a change operation.

The bracket 22 and the filling knife carrier bracket 25 are mounted upon the shaft 24. The filling knife bracket 25 carries the trip bracket 26 and filling knife trip mechanism 27. The filling knife carrier 28 is carried by the filling knife carrier slide 29, and is advanced during the bobbin change operation for positioning the filling knife or duck bill 27a for engaging the end from the spent bobbin. The stub shaft 17 is operated from the transfer mechanism through linkage and cam mechanism responsive to the action of the midget feeler (not shown).

The filling knife carrier 28 is positioned within the filling knife carrier slide 29 which is fixed as by bolts 30 to the bracket 25. The bracket A includes a horizontal portion 31 which is fastened as by the countersunk bolts 32 upon the filling knife carrier 29. The pin 83, which has connection with the slide lever '56, extends through an opening 34 in the member 61. Thus, the filling knife carrier 28 is permitted to slide within the filling knife carrier slide 29. A vertical downwardly projecting arm 65 provides a mounting 35a for a portion 36 of a substantially horizontal arm B. As stated above, the arm B carries the concave inclined guide member C having an inner concave guiding surface 3-7. The entire bobbin guide attachment is preferably constructed of aluminum. The means D includes a threaded shank 38 having a square shank portion 39 adjacent the head 40 for accommodation within the slot 41. A star Washer 42 is mounted between the arm 36 and the mounting portion 35a and a suitable lock washer 43 is attached as by a nut 44.

The means for angular adjustment E includes a member having a square shank 45 beneath a head 46. A lock washer 47 is fastened by a nut 48 upon a threaded shank portion 49. A star washer 50 is provided and the square shank45 is accommodated within the slot 51.

Referring to FIGURE 3, a picker stick 52 is carried within the picker stick slot 53 within the lay 54. It will be noted that a full bobbin 5 5 has replaced the ejected bobbin 56 from within the shuttle 57. The member C guides the spent bobbin 56 in conjunction with the bobbin guide 58 into the quill can 59.

While a preferred embodiment of the invention has been described using specific terms, such description is for illustrative purposes only, and it is to be understood that changes and variations may be made without depar-ting from the spirit or scope of the following claims.

What is claimed is:

1. A bobbin guide for preventing ejected bobbins normally ejected into a quill can from becoming lodged within a picker stick slot within a lay of a loom having a filling knife carrier with automatically operable means advancing same in a linear path to engage the end of yarn from the ejected bobbin on an automatic bobbin change operation including, a bracket carried by the filling knife carrier, a downwardly extending arm carried by the bracket and a substantially horizontal arm carried by the downwardly extending arm projecting toward the lay, a guide member carried by said substantially horizontal arm having a guiding surface extending laterally from the substantially horizontal arm across the picker stick slot when the filling knife carrier is in advanced position on an automatic bobbin change operation guiding the ejected bobbin into the quill can, and adjustable means carried by the sustantially horizontal arm for adjusting the position of the guiding surface with respect to the picker stick slot.

2. A bobbin guide for preventing ejected bobbins normally ejected into a quill can from becoming lodged within a picker stick slot within a lay of a loom having a filling knife carrier with automatically operable means advancing same in a linear path to engage the end of yarn from the ejected bobbin on an automatic bobbin change operation including, a bracket carried by the filling knife carrier, a downwardly extending arm carried by the bracket and a substantially horizontal arm carried by the downwardly extending arm projecting toward the lay, a guide member carried by said substantially horizontal arm having a concave inclined guiding surface extending laterally from the substantially horizontal arm across the picker stick slot when the filling knife carrier is in advanced position on an automatic bobbin change operation guiding the ejected bobbin into the quill can, adjustable means for adjusting the vertical position of the substantially horizontal arm, slidably adjustable means for adjusting the forward position of the substantially horizontal arm, and pivotally adjustable means for adjusting the angular position of the substantially horizrontal arm with respect to the lay.

References Cited by the Examiner UNITED STATES PATENTS 1,511,183 10/24 Davis 139-255 2,784,745 3/ 57 Carroll 139-255 "2,951,511 9/60 Hollifield et al. ..1 139-255 DONALD W. PARKER, Primary Examiner. 

1.A BOBBIN GUIDE FOR PREVENTING EJECTED BOBBINS NORMALLY EJECTED INTO A QUILL CAN FROM BECOMING LODGED WITHIN A PICKER STICK SLOT WITHIN A LAY OF A LOOM HAVING A FILLING KNIFE CARRIER WITH AUTOMATICALLY OPERABLE MEANS ADVANCING SAME IN A LINEAR PATH TO ENGAGE THE END OF YARN FROM THE EJECTED BOBBIN ON AN AUTOMATIC BOBBIN CHANGE OPERATION INCLUDING, A BRACKET CARRIED BY THE FILLING KNIFE CARRIER, A DOWNWARDLY EXTENDING ARM CARRIED BY THE BRACKET AND A SUBSTANTIALLY HORIZONTAL ARM CARRIED BY THE DOWNWARDLY EXTENDING ARM PROJECTING TOWARD THE LAY, A GUIDE MEMBER CARRIED BY SAID SUBSTANTIALLY HORIZONTAL ARM HAVING A GUIDING SURFACE EXTENDING LATERALLY FROM THE SUBSTANTIALLY HORIZONTAL ARM ACROSS THE PICKER STICK SLOT WHEN THE FILLING KNIFE CARRIER IS IN ADVANCED POSITION ON AN AUTOMATIC BOBBIN CHANGE OPERATION GUIDING THE EJECTED BOBBIN INTO THE QUILL CAN, AND ADJUSTABLE MEANS CARRIED BY THE SUBSTANTIALLY HORIZONTAL ARM FOR ADJUSTING THE POSITION OF THE GUIDING SURFACE WITH RESPECT TO THE PICKER STICK SLOT. 